Medicaid expansion is a highly politicized issue, and you don't see a lot of a big foundation grants that go explicitly to push for expansion in the opt-out states. But make no mistake: plenty of foundation-backed groups are working this front every day, including many state-based organizations.

Kaiser Mid-Atlantic gives out several million in grants each year, and spends tens of millions on programs to get care and coverage to low-income and uninsured residents in the Mid-Atlantic region of the United States.